Famous Mauna Loa Saddle Road Ideas. Located off of highway 200 (saddle road), the mauna loa observatory trailhead provides access to the remote and rugged summit of mauna loa. The saddle road is the other choice, besides near hawai‘i volcanoes national park, for accessing.

Located off of highway 200 (saddle road), the mauna loa observatory trailhead provides access to the remote and rugged summit of mauna loa. Stop by the visitor center, gaze at the stars, and enjoy your time on the world's highest mountain. The saddle road is the other choice, besides near hawai‘i volcanoes national park, for accessing.